They next took the spleen cells of the mice and fused them with a myeloma cell line, which yields cells that can be grown for long periods of time in the laboratory.

• 接下来，他们将小鼠的脾脏细胞与一种骨髓瘤细胞系融合，这样就可以产生能在实验室条件下长期存活的细胞。